A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5855-00-198-3197
NSN 6650-00-116-7439
NSN 6645-01-160-7707
NSN 5965-01-606-5393
NSN 2925-01-359-4027
NSN 5835-00-581-9460
NSN 5975-00-891-9738
NSN 5996-00-265-6573
NSN 4140-00-388-6829
NSN 6650-00-930-4707
NSN 6650-00-140-8776
NSN 5960-01-084-4987